The tilt of the Earth is what causes the seasons...In the summer, the northern pole is pointed closer to the Sun giving the northern hemisphere more daylight hours. The opposite is true during the winter.
The one that is caused by the modification of density-independent factors is : parasitic wasp invade cocoons, killing caterpillars
Density independent factors refer to occurrences that limit the number of a specific population
hope this helps
Because since developing countries are still growing, when they finally get to the level of some more advanced countries the country as a whole feels a "greater growth"
Forearm is called the Antebrachial, while the shoulder blade is called the scapular.
